Warp supporting and guiding means.



2'SHEBTS-SHEET l.

PATENTEnJUNE'26,19oe. o. W. SGHAUM. WARP SUPPORTING AND GUIDINGMEANS. APPLTLGATION FILED SEPT.20. 1905.

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o. W. SCHAUM. WARP SUPPORTING AND, GUIDING MEANS.

APPLICATION FILED SEITMZO. 1905.

2 SHEETS-SHEET 2.

ITED STATES PATE T OFICE.

WARP SUPPORTING AND GUIDING MEANS.

Specification of Letters Patent.

Patented June 26, 1906.

Application filed September 20,1905. Serial No. 279.372.

To @ZZ whom t may concern.:

Be it known that I, OTTO W. SCHAUM, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in IVarp Suporting and Guiding Means, of which the folowing is a speciiication.

The invention to be hereinafter described relates to warp supporting and guiding means in loom structures, and more particularly to such devices in looms for weaving narrow fabrics, such as ribbons and the like.

As will be readily understood by those skilled in the art, the warp-threads in the general character of looms referred to are supplied to the weaving instrumentalities from short beams or spools supported at the rear of the loom, and from such beams or spools the warps pass over suitable guiding and whip rollers, which spread the warp-threads into a sheet form for further manipulation. In such character of loom, whether single or double deck, it is desirable that the beam or spool-supporting devices and the guiding means for the warp-threads be readily adjustable in a manner to provide for sheets of warp of varying width according to the character or width of fabric to be produced. It is likewise desirable that these adjustments for the purposes noted be simple and convenient and that the relative position of the beams or spools and warp-guiding means be such as to maintain the entire set of warpthreads evenly spaced apart.

With these general considerations in View the obj ect of the present invention is to provide a back rack for the beams or spools and a support for the warp-guiding means of a character that relative movement of the sections of the back rack toward or from each other will effect a like movement of the supports for the warp-guiding means and wherein also the warp-threads shall be delivered from the warp-guiding means in a uniformlyspaced condition.

The invention consists of the parts and combinations to be hereinafter described and then definitely pointed out in the claims.

y In illustration of the present embodiment of my invention all parts of the loom structure not directly associated lwith or connected to the subject-matter of the invention have been omitted for simplification, such parts being well understood by those skilled in this art.

In the drawings, Figure l is a sectional side elevation of the rear part of a loom, showing one embodiment of the present invention; and Fig. 2 is a rear `elevation of the parts shown in Fig. l.

In the drawings, A represents any usual form of loom-framing, to which is secured the upper beam A by means of suitable arms or supports A3 and the lower beam A2, said parts being connected together in desired relation by appropriate means, as will be understood. Secured to the beams A and A2 are the face-plates a and b, extending tran-s'- versely of the loom, and adjustably connected to such face-plates, so as to be transversely movable with respect to each other, are the back-rack sections B B B2 and the guide-roll supports O O O2, as will `presently appear. Secured to the upper portions of the backrack sections B B B2 by means vof suitable bolts a are the guide-roll supports C O O2, each of which is provided with a lip a2 for engaging the upper edge of the face-plate a and a bolt a3, tapped into a lug a4 and adapted tok engage the lower edge of the face-plate a. Likewise each of the back-rack sections B B" B2 at its lower part is provided with a clamp* ing-ringer b and a bolt b2, tapped into a lug b3, said iinger being adapted to clamp between it and the end of the rack-section the upper edge of the face-plate b. From this construction it wil-l be apparent, aside from the special form and details of structure of the back-rack sections and guide-roll su port, that by proper manipulation of t e screw-bolts a3 and b2 any one of the backrack sections, and with it the connected guideh roll su port, may be adjusted transversely of the oom and then clamped in its new position or any such back-rack section and its connected guide-roll support may be readily removed from the loom.

In the present embodiment of the inven Ation the back-rack sections, as well as the guide-roll supports, are of peculiar construc- IOO back-rack sections are each provided with an offset c and that adjacent sections have such offset reversed in direction, so that between each two sections there will be a widened portion D for the support of the spools or beams and a narrow portion C either above or below such spools or beams, whereby a staggered relation of the spools or beams is secured between the successive sections. rlhe purpose of this will be readily apparent, since the fianges c c/ of the spools or beams C3 C3 occupy considerable transverse space, and by providing such widened portions in which the spools or beams may be supported in staggered relation on appropriate bearings d d, provided on opposite sides of the racksections, the spools or beams between successive sections may be arranged more compactly in transverse relation and the warp passing therefrom be presented to the guiding-rolls to be described more nearly in a uniformly-spaced relation.

ln the particular form of the back-rack sections shown in the drawings the offsets c are formed by making each section in two parts and connecting` these by a usual bolt and nut C3; but it will be understood that such detail structure may be varied within the scope of the present invention.

In order that the warp-threads delivered. from the spools or beams C3 C3 may be maintained in uniform spaced relation throughout the transverse extent of the loom, and thus presented to the weaving instrumentalities, the guide-roll supports C C C2, like the back-rack sections described, have offset or bent ends cL c, the offset or bend in one support, as C, being in an opposite direction to the offset or bend in the next adjacent support C', and so on throughout the transverse extent of the loom. It will thus be seen. that adjacent guide-roll supports present a wide and a narrow space between and that such wide space occurs between the end portions cA1 c4 of two adjacent supports and between the base portions CS as of the next adjacent supports, the wide space between successive supports being thus staggered. The end portions cL1 c4 and the base portions es cS are provided with bearings c5 and c, respectively, for the guide-rolls c7 c7, so that by reason of the offsets or bends of the guide-roll supports the guide-rolls between successive supports may be disposed in the wide space provided and the end flanges be thus caused to overlap, as seen in Fig. 2, the offset being to enable the warp-threads w (shown by dotted lines in Fig. l) to be passed over the several guide-rolls c7 c7 and delivered in sheet form with ysubstantially uniform space between `the several threads.

From the construction illustrated and described as presentin one form of the invention it will be note that the back rack for the support of the spools or beams is composed of several separate and independent sections, each provided with a series of bearings for the spools or beams, and that each section of the back rack is provided with or has secured to it a guide-roll support in the general form of a bracket, means being provided for adjustment of the several backrack sections transversely of the loom, so adjustment of a' back-rack section also secures simultaneous adjustment of the guide-roll support associated with it. lt will also be noted that the guide-roll supports are offset to present between successive supports in staggered relation wide receiving-spaces for the spools or beams, so that the flanged ends of the beams or spools by being overlapped do not interfere with the uniform spacing of the warp-threads as they are delivered to the weaving instrumentalities. In other words, the arrangement referred to gives to the series of transversely-disposed guide-rolls the functional characteristics of a continuous rod, while permitting a more or less number of such rolls to be employed, as circumstances in the width of fabric may dictate. rlhe staggered condition or overlapping of the spools or beams as resulting from the reverse offsets in adjacent rack-sections also contributes to a maintenance of uniform spaces between the warp-threads as they are delivered over the guide-rolls, as will be obvious.

It will be understood that the beams or spools are, as usual and well known to those skilled in the art, provided with tension-regulating devices; but, as hereinbefore stated, these form no essential part of the present invention and are not deemed necessary for special description or illustration. It will also be understood that changes in details may be made in the described structure without departing from the spirit of the present invention, w 'ch contemplates joint mova- IOO bility or adjustment of the back-rack seci tions and guide-roll supports and the provision of offsets or like means in the supports for maintaining a spread and evenly-spaced condition of the warp-threads. Only three back-rack sections and guide-roll supports are shown in the drawings; but this number is illustrative merely, and obviously any number may be used.

Having thus described my invention, what I claim, and desire to secure by Letters Pat-l ent, is-

1. In a loom, the combination of a back rack comprising a series of back-rack sections, a guide-roll support connected to each of said back-rack sections and movable therewith and means for adjustin the back-rack sections and their connecte roll-supports transversely of the loom.

2. In a loom, the combination of a back rack comprising a series of back-rack sections, a guide-roll support connected to each of said IIO back-rack sections and movable therewith, said guide-roll supports being offset, and means for adjusting the baclcrack sections and their connected rollsupports transversely of the loom.

3. In a loom, the combination of a back rack comprising a series of back-rack sections, a guide-roll support connected to each of 'said back-rack sections and movable therewith,- said back-rack sections and guide=roll sup# ports being oifset as described, and means for adjusting the backerack sections, and their connected roll-supports transversely of the loom.

4. In a loom, the combination of a back rack comprising aseries of back-rack sections having bearings for spools or beams, at each side thereof, adjacent back-rack sections being reversely offset, a guide-roll support connected to each of said back-rack sections and movable therewith, and means for independently adjusting the back-rack sections and their connected roll-supportstransversely of the loom.

5. In a loom, the combination of a back rack comprising a series of back-rack sections having bearings for spools or beams, at each side thereof, adjacent back-rack sections being reversely offset, a-guide-roll support connected to each of said back-rack sections and movable therewith, said guide-roll supports being reversely offset and provided with guide-roll bearings and means for ndependL ently adjusting the back-rack sections and their connected roll-supports transversely of the loom;

6; In a loom, a back rack comprising a se-I ries of back-rack sections having bearings on their opposite sides for spools or beams, said sections being offset to provide for overlapping of the spool or beam ends between successive bacl -racl sections, a guide-roll support connected to each of said back-rack sec-v tions, adjacent supports being reversely oicset to provide for overlapping the ends of the guide-rolls between successive sections and means for supporting the back-rack sections and connected roll-supports.

7. In a loom, a back-rack section and a guide-roll support connected together to be movable in unison, and means for adjustably supporting the back-rack section and guideroll support from the loom-frame.

In testimony whereof I aiiix my signature in presence of two witnesses.

OTTO W. SCI-IAUM.

Witnesses:

B. G. ELLIOTT, L. M. LENTZ. 

